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Jamo plus 4 Special CSMR screw for adjustable distance installation Zinc plated steel, partial thread with underhead thread for adjustment, countersunk head with milling ribs
Approved screw for adjustable stand-off installation of wooden substructures on wood
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RW recess ensures optimal power transmission
- Larger contact surface at the bit offers increased power
- More stability, one-handed working and precise positioning due to the tight-fit recess and perfect fit of the bit
- Fewer bit changes, one bit for multiple screw diameters
- Compatibility with previous AW recess
Permanent attachment of the component to be connected
- Fixed connection of two wooden components through the fixing grooves arranged in a ring shape on the underside of the head with a larger diameter than the screw diameter
- Adjustment of the distance between the two components by turning the screw back
Maximum reliability of the screw connection due to asymmetrical single-start thread
- Optimal combination of drill tip and thread geometry
- Excellent anchorage in wood due to asymmetrical arrangement of thread flanks
High strength values and ductility
- Precise heat treatment guarantees high strength values and high ductility
- Do not use the screw in applications with direct exposure to weathering or in humid rooms with atmospheres containing chlorine gas. If used outdoors or in rooms that are constantly exposed to high humidity, please use ASSY 4 A2 or A4 stainless steel screws and, if the atmosphere contains chlorine, use HCR stainless steel screws
- ASSY 4, ASSYplus 4 and ASSYplus 4 VG chipboard screws are optimised for use in wood and engineered wood. For applications in plastic anchors where a reduction in the admissible load may occur, only use screws without an optimised thread tip (tip with milling ribs, drill tip, self-clearing groove etc.), such as the JAMO 4 CS, ASSY D screws with countersunk head or pan head
For wood-to-wood connections designed for adjustment
The fixing grooves arranged in a ring shape on the underside of the head with a larger diameter than the screw diameter enable the fixed connection of two wooden elements, even when already installed. The permanent attachment of the component to be connected and the screw turn-back allows the distance between the components to be adjusted.
For applications in utilisation class 1 and utilisation class 2 (from dia. > 4 mm)
- High-quality, chromium(VI)-free, blue passivated, zinc surface protection, 8 µm layer thickness
- Suitable for use in utilisation class 1 (indoor areas) and from dia. > 4 mm in utilisation class 2 (wet areas or covered outdoor areas) in accordance with EN 1995-1-1:2010-12 + DIN SPEC 1052-100:2013-08
- The requirement of classification T2/C2 is fulfilled in accordance with prEN 14592:2017 (D)
- JAMO screws are approved for quasi-static loads
- For optimal use of the screw, use the RW bit that fits exactly
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